<!DOCTYPE html>
<html>
<title>Root to shared animation test (ref)</title>
<link rel="help" href="https://drafts.csswg.org/css-view-transitions-1/">
<link rel="author" href="mailto:vmpstr@chromium.org">

<style>
body, html { padding: 0; margin: 0 }
body {
  background: yellow;
}
.background {
  background: lightgreen;
  width: 400px;
  height: 300px;
}
.item {
  background: blue;
  width: 200px;
  height: 200px;
}
</style>

<div class=background>
  <div class=item></div>
</div>
